Doctor profile · Federal record

Dr. Ramona Lim, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Boston, MA

  • NPI 1285608240
  • Accepts Medicare
  • 31 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
75 Francis St, Asbii, Div of Gastroenterology, Hepatology & Endoscopy
Boston, MA 021156110
(617) 732-6389

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
May 9, 2012
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
Massachusetts #246249 · Florida #75011

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285608240. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
591
Distinct HCPCS
10
Medicare allowed
$73,010
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 139 86 $102
99215 Established patient office or other outpatient visit, 40-54 minutes 50 41 $150
45380 Biopsy of large bowel using a flexible endoscope 42 42 $133
91110 Imaging of digestive tract done from the inside of the digestive tract 40 37 $119
99443 Telephone medical discussion with physician, 21-30 minutes 39 26 $103
99215 Established patient office or other outpatient visit, 40-54 minutes 38 37 $153
99214 Established patient office or other outpatient visit, 30-39 minutes 35 27 $104
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 30 30 $268
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 30 20 $84
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 28 28 $138

In context: peer comparison

Among 78 peers in Boston Gastroenterology Physician, average services per provider: 56. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
282
Patients
90
Total drug cost
$39,476
Drug Type Claims Patients Total cost
Omeprazole Generic 66 29 $1,652
Famotidine Generic 53 23 $600
Pantoprazole Sodium Generic 30 14 $709
Linzess (Linaclotide) Brand 28 0 $27,985
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 27 24 $427
Dicyclomine Hcl Generic 20 0 $537
Esomeprazole Magnesium Generic 17 0 $4,168
Colestipol Hcl Generic 15 0 $3,318
Prednisone Generic 15 0 $68
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 11 0 $12

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ramona Lim's medical specialty?
Dr. Ramona Lim practices Gastroenterology Physician in Boston, MA.
Where does Dr. Ramona Lim practice?
Dr. Ramona Lim practices at 75 Francis St, Boston, MA 021156110. Office phone: 6177326389.
What is Dr. Ramona Lim's NPI?
Dr. Ramona Lim's National Provider Identifier (NPI) is 1285608240, issued by NPPES.
Does Dr. Ramona Lim accept Medicare assignment?
Yes. Dr. Ramona Lim accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ramona Lim commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.